AD8638

16 V Auto-Zero, Rail-to-Rail Output Operational Amplifiers AD8638/AD8639 FEATURES Low offset voltage: 9 μV maximum Offset drift: 0.04 μV/°C maximum Rail-to-rail output swing 5 V to 16 V single-supply or ±2.5 V to ±8 V dual-supply operation High gain: 136 dB typical High CMRR: 133 dB typical High PSRR: 143 dB typical Very low input bias current: 40 pA maximum Low supply current: 1.3 mA maximum AD8639: qualified for automotive applications APPLICATIONS Pressure and position sensors Strain gage amplifiers Medical instrumentation Thermocouple amplifiers Automotive sensors Precision references Precision current sensing GENERAL DESCRIPTION The AD8638/AD8639 are single and dual wide bandwidth, auto-zero amplifiers featuring rail-to-rail output swing and low noise. These amplifiers have very low offset, drift, and bias current. Operation is fully specified from 5 V to 16 V single supply (±2.5 V to ±8 V dual supply). The AD8638/AD8639 provide benefits previously found only in expensive ...